/*
 *  NFCSigning - Open source library for signing/validation of NDEF messages
 *  Copyright (C) 2009-2010 The NFCSigning Team
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */
package org.nfcsigning;

import org.nfcsigning.algorithm.PublicKey;
import org.nfcsigning.algorithm.SignatureException;
import org.nfcsigning.algorithm.SignatureVerifier;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.MD5Digest;

/**
 *
 * @author Markus Kilås
 */
public class OtherAlgVerifier implements SignatureVerifier {

    public boolean verifySignature(byte[] signature, byte[] coveredBytes, PublicKey publicKey) throws SignatureException {
        Digest digest = new MD5Digest();
        byte[] out = new byte[digest.getDigestSize()];
        digest.update(coveredBytes, 0, coveredBytes.length);
        digest.doFinal(out, 0);
        return Utils.equals(signature, out);
    }

}
